DCS与PLC通讯技术的实施策略

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2008.9···1.DCS,,,。,DCS,。DCS(CS3000TPS)MODBUS,S7-400PLCYOKOGAWACS3000,MODBUSRS485,,、。HoneywellTPSMODBUS。2.S7-400PLCCS300030/DCSCS3000,5PKS7-400PLC,CS3000MODBUS。MODBUS。,,。/。RS232、RS422、RS485。:DCSPLC,DCS,PLC。MODBUS,Modbus,,。CP340/CP341/CP440/CP441-1/CP441-2S7-300/400PLC,1(CP441-22)(RS232CTTYRS485/422)。S7300/400,、、、Modbus、DataHighway、,USS。5PKCP341(CP441-2)ALR121,CP341ALR121,,1。DCSPLC■(163453):SIEMENSPLCYOKOGAWACS3000,PLCDCSMODBUS,,、。HoneywellTPSMODBUS。:PLCCS3000TPSMODBUS:TP273.5·2008.9··3.3.1CS3000ALR121ALR121RS422/485,,2。RS4853。3.2CP341CP341S7-300/400PLC,1(RS232CTTYRS485/422)。S7300/400,3。3.3CP341ALR121RS485,3,CP3414、8、11ALR121TX+、TX-、SG,,4。4.PK301S7-414HPLCCS3000,CP341()ALR121()。4.1PLC,STEP7V5.3+SP2CP341,CP341(STEP7)、FB、。CP341,5。CP341“EditObjectProperties”,CP341,6.0,“General”,“Addresses”“BasicParameters”。“Parameters”9600,,PLCMODBUS“10”,6.1。ModubsFunctionCodePLCM,I,Q。6.2MODBUSRS485,6.3DB60DB61。1CP341ALR1212ALR1213CP3414RS485CP341ALR1212008.9···BLOCKS,,“Blocks”:FB7ReceiveDatafromCP341/ProvideDataforCP341FB8SendDatatoCP341/FetchDatafromCP341FB80MODBUSSLAVEforCP341DB60DCSCommunicationslistSendDB61DCSCommunicationslistReciveFC60MODBUS-SEND/STATUSSIGNALSFC61MODBUS-RECIVE/COMMANDSIGNALSOB1,。Network10FC60、FC61。:STL。Network11/12MODBUS。5CP3416.0CP341MODBUS6.1CP3416.2CP341RS4856.3CP341DB·2008.9··FC60,PLCDCSDB60。TT3501:DB60.DBW30,。:4.1.1Modbus(1)MODBUS,CP341/CP441-2,CPMODBUS(RTU)DataHighway(DF1),CP441-2,、Dongle、Loadabledriver,6.4。(2)MODBUS,Modbus,,。CP341MODBUSDongleDongle,MODBUS,MODBUS,6.5。4.1.2ModbusCPModbusDongle,6.5,Modbus,,,modbus,CP341,Parameter,Modbus:PCPLC,PLC,LoadDrivers,6.0。LoadDrivers,。Modbus,PLCSTOP。4.2CS3000CS3000,ALR121。,PORT2,7。PORT2,6.4CP3416.5MODBUS2008.9···9600BPS,,,8。,ALR121,9。:SIZE:44PORT:2STATION:10DEVICE&ADDRESS:A30061()DEVICE&ADDRESS:A30080()DATATYPE:Input(32-BitFloating)LABEL:%%TT3501(TT3501)DEVICE&ADDRESSA30080PLCMODBUS,PLC。“Device&Address”ModbusPLC:functioncode+devicetype+addressofthedevice“xxxx”ModbusPLC,1-65535(1HtoFFFFH),PK301A30080,A30061。1。1MODBUSCS30007ALR1218ALR121·2008.9··,A30061,!WW0109,10FCS0101SWITCH。,1Word=8Byte16Bit,!WW0109%WB10901~%WB109016,16。PLC,11。TagNameCS3000,TT3506AS,DCS,12。,PLCDCS,CS3000FUCTIONBLOCKPVI,TI3501,13。5.TPSMODBUSTPSTPNSERVEROPCGUSLCN,SI,SIHPMIOP,ARRAY,LOGIC、PM,。TPSABPLC,。TPS,9ALR12110SWITCH1112TT3506ASDCS13FUCTIONBLOCKPVI2008.9···TPSMODBUS,2,2,、、、TPS,16,,,16,MODBUS,MODBUS16,;,15,5。TPS,STARTINDEX,,STARTINDEX5,,4。4“0”,TPS“1”,TPS1。,TPS,ARGGSI。。2MODBUSTPS6.,PLCDCS,,PK801、PK301,PLCDCSDCS,,。PLCDCS,,。

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